A medical study in the last year has found that genetic defects affect half of all infertility cases.(1) This brings into focus the significance of genetics for family building purposes in terms of fertility, conception, pregnancy and birth (and not just from a disease and health perspective). This can make it important to consider a range of genetic, medical and legal questions with geneticists, clinical and legal professionals. Should I undergo genetic testing to see if I might have difficulties with pregnancy or pass a genetic disorder on to my child? Should I undergo genetic counselling before conception? Should I get my embryos genetically screened before implantation? Should I undergo fertility preservation treatment? How can I maximise my chances of successful conception, birth or family completion? How can I maximise my prospects of having a genetically related child? Should I undergo prenatal testing? How can I legally protect my stored eggs, sperm and embryos? How can I successfully navigate fertility treatment law in the UK? What will happen to my stored eggs, sperm or embryos and my genetic legacy if I die?